Develop Reference

Object not shown on Canvas (WPF Application)

In this Application, i have a car class with a method called Spawn (which should draw the object on a Canvas which i defined in the XAML file). I call the Method in MainWindow, but when I run my program, there is no car being drawn onto the Canvas.
Here is the Spawn method:
public void Spawn(Canvas cvs)
{
cvs = new Canvas();
cvs.Children.Clear();
carBody.Width = 70;
carBody.Height = 120;
carBody.Background = new SolidColorBrush(Color);
Canvas.SetLeft(carBody, SpawnLocation.X);
Canvas.SetTop(carBody, SpawnLocation.Y);
Rectangle[] tires = new Rectangle[4];
Rectangle[] windows = new Rectangle[2];
Label lblBrand = new Label();
RotateTransform rotation = new RotateTransform();
// Reifen
tires[0] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[0], -9);
Canvas.SetTop(tires[0], 18);
tires[1] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[1], 61);
Canvas.SetTop(tires[1], 18);
tires[2] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[2], -9);
Canvas.SetTop(tires[2], 80);
tires[3] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[3], 61);
Canvas.SetTop(tires[3], 80);
// Fenster
windows[0] = new Rectangle() // Front
{
Fill = Brushes.White,
Width = 50,
Height = 40
};
Canvas.SetLeft(windows[0], 0);
Canvas.SetTop(windows[0], 0);
windows[1] = new Rectangle() // rear
{
Fill = Brushes.White,
Width = 50,
Height = 50
};
Canvas.SetLeft(windows[1], 0);
Canvas.SetTop(windows[1], 0);
// Label Automarke
lblBrand.Width = 40;
lblBrand.Height = 23;
lblBrand.Content = Brand;
// Add2Canvas
for (int i = 0; i < tires.Length; i++)
carBody.Children.Add(tires[i]);
for (int i = 0; i < windows.Length; i++)
carBody.Children.Add(windows[i]);
carBody.Children.Add(lblBrand);
if (Direction == "nord")
{
rotation.Angle = 0;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
else if (Direction == "süd")
{
rotation.Angle = 180;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
else if (Direction == "west")
{
rotation.Angle = 90;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
else if (Direction == "ost")
{
rotation.Angle = 270;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
cvs.Children.Add(carBody);
}
Calling the methodMainWindow:
Car car1;
public MainWindow()
{
InitializeComponent();
car1 = new Car("Audi", Colors.Red);
car1.Direction = "west";
car1.SpawnLocation = new Point(550, 340);
car1.Spawn(gameScreen);
}
Thanks in advance!

Fixed it! I initialized the argmument of my Spawn method, it now works after I deleted it.
My method looked like this first:
public void Spawn(Canvas cvs)
{
cvs = new Canvas();
cvs.Children.Clear();
carBody.Width = 70;
I initialized my the Argument, but since i don't wanna create a new Canvas, i deleted these two first lines of my method.
public void Spawn(Canvas cvs)
{
carBody.Width = 70;
carBody.Height = 120;
carBody.Background = new SolidColorBrush(Color);
Now its working fine.

i need audio frequency response graph c#

i need logarithm x-axis based linechart for audio frequency magnitude response for c# winform , i have tested default chart and livechart but c'ant align x axis attached photo like . anybody know please help me.
sorry for my bad english
Live Chart Code :
cartesianChart1.AxisY.Add(new Axis
{
Title = "Gain",
MaxValue = 10,
MinValue = -15,
Separator = new Separator
{
Stroke = new SolidColorBrush(System.Windows.Media.Color.FromRgb(46, 35, 35))
}
});
cartesianChart1.AxisX.Add(new LogarithmicAxis
{
Title = "Freq",
LabelFormatter = (value) => (Math.Pow(10, value).ToString("N0")+"Hz"),
Base = 10,
Separator = new Separator
{
Step=0,
Stroke = new SolidColorBrush(System.Windows.Media.Color.FromRgb(35, 35, 35))
},
});
cartesianChart1.BackColor = System.Drawing.Color.FromArgb(0, 0, 0);
cartesianChart1.DisableAnimations = true;
cartesianChart1.Hoverable = false;
cartesianChart1.DataTooltip = null;
var Datapoint = new ChartValues<ObservablePoint>{
new ObservablePoint(1, 5),
new ObservablePoint(5, -4),
new ObservablePoint(10, 6),
new ObservablePoint(100, 4),
new ObservablePoint(150, 7),
new ObservablePoint(1000, 2),
new ObservablePoint(10000, 8),
new ObservablePoint(15000, 2),
new ObservablePoint(20000, -7),
};
cartesianChart1.Series = new SeriesCollection(Mappers.Xy<ObservablePoint>()
.X(point => Math.Log10(point.X))
.Y(point => point.Y))
{
new LineSeries
{
PointGeometry = null,
PointGeometrySize = 0,
Values = Datapoint,
}
};
Live Chart Display :
Default Chart Code :
var r = new Random();
float val;
var chart = chart1.ChartAreas[0];
chart.AxisX.IntervalType = DateTimeIntervalType.Number;
chart.AxisX.LabelStyle.Format = "";
chart.AxisY.LabelStyle.Format = "";
chart.AxisY.LabelStyle.IsEndLabelVisible = true;
chart.AxisX.Minimum = 0;
chart.AxisX.Maximum = 20000;
chart.AxisY.Minimum = -15;
chart.AxisY.Maximum = 10;
chart.AxisX.Interval = 500;
chart.AxisY.Interval = 3;
chart.BackColor = Color.Black;
chart1.Series.Add("Sakthi");
chart1.Series["Sakthi"].ChartType = SeriesChartType.Spline;
chart1.Series["Sakthi"].Color = Color.Yellow;
chart1.Series["Sakthi"].BorderWidth = 3;
chart1.Series["Sakthi"].BorderColor = Color.Black;
chart1.ChartAreas[0].AxisX.MajorGrid.LineDashStyle = System.Windows.Forms.DataVisualization.Charting.ChartDashStyle.Solid;
chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = Color.FromArgb(35, 35, 35);
chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = Color.FromArgb(35, 35, 35);
chart1.ChartAreas[0].AxisY.LabelStyle.ForeColor = Color.White;
chart1.ChartAreas[0].AxisX.LabelStyle.ForeColor = Color.White;
chart1.Legends[0].Enabled = false;
chart.AxisY.StripLines.Add(new StripLine
{
BorderDashStyle = ChartDashStyle.Dot,
BorderColor = Color.White,
StripWidth = 0
});
chart1.Series.Clear();
chart1.Series.Add("Sakthi");
chart1.Series["Sakthi"].ChartType = SeriesChartType.Spline;
chart1.Series["Sakthi"].Color = Color.Yellow;
chart1.Series["Sakthi"].BorderWidth = 3;
chart1.Series["Sakthi"].BorderColor = Color.Black;
for (int i = 0; i < 10; i++)
{
val = r.Next(-15, 10);
chart1.Series["Sakthi"].Points.AddXY(i*2000, val);
}
Default Chart Display :
i want this this type x axis label :

Pixelated text chart using Charting Library in ASP

I want to create a chart with this Library, I have created one but the text is pixelated so the feel is very ugly.
I'm passing this charts to a PDF file with iText Sharp to create a report.
Here is the code:
private static byte[] ObtenerBarraDoble(IList<ValorBarraDTO> valores)
{
var newColor1 = Color.FromArgb(187, 189, 191);
var newColor2 = Color.FromArgb(0, 138, 209);
using (var graficoPie = new Chart { Height = 200, Width = 600, RenderType = RenderType.BinaryStreaming })
{
var chartAreaPie = new ChartArea();
chartAreaPie.AxisX.LabelStyle.Format = "dd/MMM\nhh:mm";
chartAreaPie.AxisX.MajorGrid.LineColor = Color.White;
chartAreaPie.AxisY.MajorGrid.LineColor = Color.White;
chartAreaPie.AxisX.LabelStyle.Font = new System.Drawing.Font("Trebuchet MS", 2);
chartAreaPie.AxisY.LabelStyle.Font = new System.Drawing.Font("Trebuchet MS", 2);
graficoPie.ChartAreas.Add(chartAreaPie);
var serieNuevo = new Series("Cartera Actual")
{
ChartType = SeriesChartType.Column,
XValueMember = "label",
YValueMembers = "valor1",
Color = newColor1,
Legend = "Cartera Actual",
IsValueShownAsLabel = true,
};
graficoPie.Series.Add(serieNuevo);
var serie = new Series("Cartera Recomendada")
{
ChartType = SeriesChartType.Column,
XValueMember = "label",
YValueMembers = "valor2",
Color = newColor2,
Legend = "Cartera Propuesta",
IsValueShownAsLabel =true,
};
graficoPie.Series.Add(serie);
graficoPie.DataSource = valores;
return PdfHelper.ChartABinario(graficoPie);
}
}
Here is ChartABinario method:
internal static byte[] ChartABinario(Chart graficoPie)
{
using (var ms = new MemoryStream())
{
graficoPie.SaveImage(ms, ChartImageFormat.Png);
byte[] retorno = ms.ToArray();
return retorno;
}
}
This creates the chart and it's displaying it well, but the text is bad. What can I do to make that the text doesn't display pixelated letters?

Chart font style always bold when background is transparent

I have a basic asp.net chart writing into the response stream.
Changing BackColor to Color.Transparent and every text being bold automaticly. Searched many posts/forums about this issue but couldnt find any solution.
This my Chart builder Code.
public static void BuildChart(Chart chart, IEnumerable<MultiMeasureData> source, Measure[] measures,bool transparent)
{
var ca = chart.ChartAreas.FirstOrDefault();
if (ca == null)
chart.ChartAreas.Add(ca = new ChartArea());
//added for transparency support.
ca.BackImageTransparentColor = Color.White;
ca.BackColor = Color.Transparent;
Series s = new Series("Ölçümler");
s.Font = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Regular);
chart.Series.Add(s);
var leg = new Legend("legend1");
leg.Docking = Docking.Top;
//added for transparenct support.
leg.BackColor = Color.Transparent;
leg.Font = new Font("Arial", 8, FontStyle.Regular);
chart.Legends.Add(leg);
chart.Palette = System.Windows.Forms.DataVisualization.Charting.ChartColorPalette.Berry;
//Transparency.
chart.BackColor = transparent ? Color.Transparent : Color.White;
//chart.BackSecondaryColor = Color.FromArgb(187, 205, 237);
//chart.BackGradientStyle = System.Windows.Forms.DataVisualization.Charting.GradientStyle.LeftRight;
if (source != null)
{
if (measures.Length > 0)
{
ca.AxisX.LabelStyle.Format = "dd.MM.yy";
ca.AxisX.MinorGrid.Enabled = true;
ca.AxisX.MinorGrid.Interval = 12;
ca.AxisX.MinorGrid.IntervalType = DateTimeIntervalType.Hours;
ca.AxisX.MinorGrid.LineColor = Color.LightGray;
ca.BackGradientStyle = System.Windows.Forms.DataVisualization.Charting.GradientStyle.HorizontalCenter;
// ca.BackColor = Color.FromArgb(134, 218, 239);
ca.AxisY.LabelStyle.Format = "{0}" + measures.First().Type.Unit;
ca.AxisY.LabelStyle.ForeColor = Color.Black;
ca.AxisY.LabelStyle.Font = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Regular);
ca.AxisX.LabelStyle.ForeColor = Color.Black;
ca.AxisX.LabelStyle.Font = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Regular);
ca.AxisX.MajorGrid.LineColor = Color.Silver;
ca.AxisY.MajorGrid.LineColor = Color.Silver;
// var tm = (e - s).TotalMinutes / 10;
var data = source
.Select(a =>
{
var ret = new { Time = a.Time, Values = new double?[measures.Length] };
for (int i = 0; i < measures.Length; i++)
ret.Values[i] = a.Values[i].HasValue ? a.Values[i] / measures[i].Type.ValueScale:null;
return ret;
}
).OrderBy(a => a.Time);
var times = data.Select(a => a.Time).ToArray();
for (int i = 0; i < measures.Length; i++)
{
var serie = new Series(measures[i].Type.Name) { ChartType = SeriesChartType.Spline };
serie.XValueType = ChartValueType.DateTime;
serie.ShadowColor = Color.Gray;
serie.BorderWidth = 2;
serie.ShadowOffset = 1;
serie.Points.DataBindXY(times, new[] { data.Select(a => a.Values[i]).ToArray() });
serie.LegendText = measures[i].Type.Name;
serie.Font = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Regular);
chart.Series.Add(serie);
}
}
}
}
this is mainly stream writer method using BuildChart method
public static void SaveChart(System.IO.Stream stream, System.Drawing.Imaging.ImageFormat format, int w, int h, IEnumerable<MultiMeasureData> source, Measure[] measures,bool transparent)
{
var c = new Chart() { Width = w, Height = h};
BuildChart(c, source, measures,transparent);
c.SaveImage(stream, format);
}
And here is both results.
Background.White (transparent parameter is false)
Background.Transparent (transparent parameter is true)

look at this answer :MS Chart Control: Formatting Axis Labels
This solved my problems
Regards
Nemanja

How do I make a pie-in-pie chart with MSChart?

I've downloaded MS Chart samples and in the gallery it shows a "3DPieInPie.png", which is what I want - but can't see any code to create it!!
Presumably it's ChartType = SeriesChartType.Pie ... but is there another setting that specifies I want the second pie? And how do enter the second set of data? - I've tried adding a new series, but it seems to be ignored.

This type of diagram is called nested pie chart, or multilevel pie chart.
It is done by creating two ChartArea - pie chart and donut chart,
which are correctly placed one relative to the other.Here is code below.
public partial class Form1 : Form
{
public class DataInt {
public string Label { get; set; }
public int Value { get; set; } }
public Form1()
{
InitializeComponent();
pieChart.Series.Clear();
pieChart.Legends.Clear();
float baseDoughnutWidth = 25;
float outerSize = 80;
ChartArea outerArea = new ChartArea("OUTER_AREA");
outerArea.Position = new ElementPosition(0, 10, 100, 100);
outerArea.InnerPlotPosition = new ElementPosition((100 - outerSize) / 2, (100 - outerSize) / 2, outerSize, outerSize);
outerArea.BackColor = Color.Transparent;
pieChart.ChartAreas.Add(outerArea);
float innerSize = 53;
ChartArea innerArea = new ChartArea("INNER_AREA");
innerArea.Position = new ElementPosition(0, 5, 100, 100);
ElementPosition innerPos = new ElementPosition((100 - innerSize) / 2, ((100 - innerSize) / 2), innerSize, innerSize+5);
innerArea.InnerPlotPosition = innerPos;
innerArea.BackColor = Color.Transparent;
pieChart.ChartAreas.Add(innerArea);
Series outerSeries = new Series("OUTER_SERIES");
outerSeries.ChartArea = "OUTER_AREA";
outerSeries.ChartType = SeriesChartType.Doughnut;
outerSeries["DoughnutRadius"] = Math.Min(baseDoughnutWidth * (100 / outerSize), 99).ToString().Replace(",", ".");
Series innerSeries = new Series("INNER_SERIES");
innerSeries.ChartArea = "INNER_AREA";
innerSeries.ChartType = SeriesChartType.Pie;
var innerData = new List<DataInt> { new DataInt { Label = "A", Value = 7 },
new DataInt { Label = "B", Value = 14 }, new DataInt{Label="C",Value=19},
new DataInt{Label="D",Value=12}, new DataInt{Label="E",Value=20},
new DataInt{Label="F",Value=28} };
var outerData = new List<DataInt> { new DataInt { Label = "Gold", Value = 21 },
new DataInt{Label="Red",Value=31}, new DataInt { Label = "Blue", Value = 48 } };
innerSeries.Points.DataBindXY(innerData, "Label", innerData, "Value");
outerSeries.Points.DataBindXY(outerData, "Label", outerData, "Value");
pieChart.Series.Add(innerSeries);
pieChart.Series.Add(outerSeries);
Legend legend = new Legend("pieChartLegend")
{
Font=new System.Drawing.Font("Arial",14.0f),
Alignment = StringAlignment.Center,
Docking = Docking.Top,
Enabled = true,
IsDockedInsideChartArea = false,
TableStyle = LegendTableStyle.Wide,
};
pieChart.Legends.Add(legend);
foreach (Series sr in pieChart.Series)
{
sr.Legend = "pieChartLegend";
}
var outerAreaColors = new List<Color>(){Color.Gold,Color.Red, Color.DeepSkyBlue };
var innerAreaColors = new List<Color>() {Color.Goldenrod,Color.DarkGoldenrod, Color.DarkRed, Color.Firebrick,Color.DodgerBlue, Color.SteelBlue };
for (int i = 0; i < outerSeries.Points.Count; i++)
{
outerSeries.Points[i].Color = outerAreaColors[i];
}
for (int i = 0; i < innerSeries.Points.Count; i++)
{
innerSeries.Points[i].Color = ChartColorPallets.Inner[i];
}
int inclination = 20;
int rotation = 45;
bool enable3d = true;
pieChart.ChartAreas["OUTER_AREA"].Area3DStyle.Enable3D = enable3d;
pieChart.ChartAreas["OUTER_AREA"].Area3DStyle.Inclination = inclination;
pieChart.ChartAreas["OUTER_AREA"].Area3DStyle.Rotation = rotation;
pieChart.ChartAreas["INNER_AREA"].Area3DStyle.Enable3D = enable3d;
pieChart.ChartAreas["INNER_AREA"].Area3DStyle.Inclination = inclination;
pieChart.ChartAreas["INNER_AREA"].Area3DStyle.Rotation = rotation;
}
}

Check out these answers. They also include some sample code:
http://social.msdn.microsoft.com/Forums/en-US/MSWinWebChart/thread/54b4dbb7-1622-4798-8b6a-ef4f01e48c31/
http://support2.dundas.com/default.aspx?article=1115
http://support2.dundas.com/Default.aspx?article=1114